Powered garden tiller and attachments therefor

Claim 1

A POWERED GARDEN TILLER COMPRISING A HOUSING HAVING A CHAMBER AND AN OPENING, ROLLER MEANS MOUNTING SAID HOUSING FOR MOVEMENT OVER THE GROUND, A MOTOR MOUNTED ON SAID HOUSING HAVING A SHAFT EXTENDING INTO SAID CHAMBER, A WORM MOUNTED ON SAID SHAFT, A WORM GEAR IN MESH ENGAGEMENT WITH SAID WORM, AN INNER WALL MOUNTED IN SAID CHAMBER, A SHAFT MOUNTING SAID WORM GEAR AND EXTENDING THROUGH A WALL OF SAID HOUSING AND SUPPORTED ON SAID INNER WALL, SAID WORM GEAR SHAFT HAVING A KEY, SAID WORM GEAR HAVING A SLOT RECEIVING SAID KEY AND PERMITTING THE SLIDABLE MOVEMENT OF SAID SHAFT, A KNOB MOUNTED ON THE OUTER END OF SAID SHAFT FOR SLIDING SAID SHAFT, CRANKSHAFT MEANS HAVING A STUB SHAFT SUPPORTED BY SAID INNER WALL AND A WALL OF SAID HOUSING ROTATABLY MOUNTING SAID CRANKSHAFT MEANS IN ALIGNMENT WITH SAID WORM GEAR SHAFT, ONE OF SAID STUB SHAFTS HAVING A SLOT, A TONGUE MOUNTED ON SAID WORM GEAR SHAFT AND RECEIVED BY SAID SLOT FOR TRANSMITTING ROTATIONAL MOVEMENT OF SAID WORM WHEEL TO SAID CRANKSHAFT MEANS, A PLURALITY OF TILLER SUPPORT MEMBERS ROTATABLY MOUNTED ON ONE END TO SAID CRANKSHAFT MEANS AND THE OTHER END EXTENDING THROUGH SAID OPENING IN SAID HOUSING, A LINK SUPPORTING SHAFT MOUNTED IN SAID CHAMBER, A PLURALITY OF LINKS CONNECTED AT ONE END TO SAID LAST NAMED SHAFT AND AT THE OTHER END TO SAID TILLER SUPPORT MEMBERS ADJACENT SAID OTHER END, AND GROUND TILLING MEANS REMOVABLY SECURED TO SAID OTHER END OF SAID SUPPORT MEMBERS WHEREBY UPON ACTUATION OF SAID MOTOR SAID TILLING MEANS WILL OSCILLATE IN A VERTICAL PLANE.